Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Yachts and Sail => Topic started by: tigertiger on January 09, 2008, 11:48:12 am
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Ooohh err! missus. ::)
I am looking at plans of Lousie Heloise.
In the picture there is an item named 'crutch' (pen points to it)
And there are stiffening stantions to recive the crutches. To the left of the crtuch on the diagram, follow arrows backwards.
Where do the crutches fit. I cannot find any reference in the plans to where they will be situated. I have tried all planes but I assume they will be in the same plane as on the drawing i.e. the same as the deck.
Anybody any idea what the crutches are and where they fit??
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Hi tt
Know nothing about sailing or sails but have found this.
Crutch Wooden or metal fitting into which the boom fits when not in use
http://www.sailingsoftware.co.uk/Almanac/almanac_glossary.htm#C
And this
When the sail is not set, a knee or piece of knee-timber, placed inside of a vessel, to secure the heels of the cant-timbers abaft, also the chock upon which the spanker-boom rests
http://www.sonrisayachting.com/52/en/Nautical_dictionary
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TT
This looks from the drawing like a grounding crutch, which holds the boat upright if it is kept in a drying harbour
If this is the case it would normally be lashed/bolted/ fixed to both gunwales - and the length would be to the level of the keel so that the boat sits more or less upright.
does this seem possible?
andrew
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Grounding crutch = Beaching legs? There should be two.
Andy
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AndrewH is right, it is a grounding crutch or leg. See pics below:
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If they are grounding crutches, where would they normally be stowed when not in use?
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Along the inside of the bulwarks I would imagine.
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Or slung on the outside of the bulwarks
- do any pictures of the full-size show them?
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I don't seem to have any showing them stowed. It's possible that some might pivot up and are secured further aft but for detachable ones I think it's more likely that they would be stowed inboard on a fishing boat as they might otherwise get in the way and would be vulnerable to being damaged or washed away in bad weather.
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Hi all
If you look carefully at the .jpg of afishing boat in a drying harbour a couple of posts back you can see a) the pivot point and b) a line from the lower end going up over the rail. I assume this would be used to haul up the leg and would be made off to a cleat inside the bulwark.
Cheers
Guy
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Hi
a crutch is for holding the boom to take the weight of the rigging and is in the form of a x
and would fit across the deck against the bulwalks the top section would have a semi crcle hole in the top section of thex too suit the boom
John
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Yes. but in this case it's a grounding leg as the drawing clearly shows.
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I assume then that they must be slung inboard die to the curvature of the hull.
What is the purpose of the rebate in the side of the crutch? In the figure it appears to be about a foot long about a foot from one end.
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It may be that in this particular case the crutch is mounted at right angles to the hull when in use and the rebate is there to fit round the gunwhale. Not enough info on the bit of the drawing posted to confirm this but if the length of the rebate is the same as the height of the gunwhale that is probably the answer. The crutches on the fishing boats in my pictures have "feet" to spread the load on softer surfaces. This helps prevent the crutches from digging in and allowing the boat to list when dried out.
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Hi,
Is it possible the rebate is to sit over the 'wale timbers' (?) Thickening of the side timbers roughly in line with the deck.
Cheers
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Further to my previous reply I think you will find that the "cutout" is there not just to fit around the gunwhale but to take some of the load vertically instead of putting it all on the horizontal pin.